Musée de l’Air et de l’Espace
Just north of Paris is the Musée de l’Air et de l’Espace, or the Air and Space museum of France, one of the oldest aviation museums in the world. On display are 19,595 items, including more than 150 aircraft spanning the history of aviation, showcasing the best-known flying machines such as the Concorde, and even such historical interests as a 16th century aircraft. You can also see prototypes of Russian and Swiss rockets.
Musée de l’Assistance Publique - Hôpitaux de Paris
Where else but Paris will you find a museum that traces the history of hospitals? Head to the Musée de l’Assistance Publique - Hôpitaux de Paris, located on the left bank of the Seine. This museum showcases the hospitals in this city from the Middle Ages to the start of the 20th century and includes the history of medicines and the treatment of various ailments.
Musée des Égouts de Paris
The first sewer system in Paris was constructed way back in 1370, and it has grown since then to accommodate the city's more than 2 million inhabitants. Finding out about the complex works involved is an original way to understand the city. There is an exhibition area, where machinery and models that were used in bygone times, as well as the ones that are used now, are on display. There is also an audio-visual show.
The Dupuytren museum has been in existence since 1835 and exhibits examples of uncommon anatomic pathologies. Included are skeletons, wax casts and organs preserved in jars -- in all over 6,000 pieces on display. This museum leaves nobody indifferent, but it must be warned, it is not at all for the faint of heart.
Muséum national d'Histoire naturelle (Musée de l'Homme)
Heir to the Trocadero Museum of Ethnology, the Museum of Man has the largest French collections on the definition, history and life of man. It includes a four-story taxonomy wing, a building of skeletons and fossils and a separate structure devoted entirely to geology.